Airborne camera low-temperature heating system and heating method thereof

Abstract

The invention discloses an airborne camera low-temperature heating system and a heating method thereof. The system comprises a control circuit, a temperature measurement circuit, a heating circuit, a communication circuit, a power supply circuit and an upper computer. The temperature measurement circuit detects the temperature of an external environment and transmits temperature information to the control circuit in real time, and the control circuit judges and processes the temperature information. When the external temperature reaches a preset starting temperature point, the control circuit sends out an instruction, and the heating function is started. According to the invention, the heating power can be dynamically adjusted in real time according to the change of the external temperature, and heating resources can be effectively utilized; and the system has a manual/automatic heating switching function, and is high in flexibility and high in environment adaptability.

Description

technical field [0001] The invention belongs to the technical field of airborne cameras. Background technique [0002] Due to the influence of the flight environment of the aircraft, the airborne camera will often be in a high-temperature or low-temperature working environment. When the temperature is low or the temperature changes drastically, the optical lens of the camera or the window glass are prone to water mist, frost or even ice, resulting in Observation is not clear, affecting the observation results. [0003] At present, the traditional airborne camera also has a heating system at the lens glass. This type of system often has the following disadvantages: [0004] 1. The heating circuit is relatively complicated, and the probability of failure is relatively high; [0005] 2. The heating method adopts the method of bonding the lens glass with the heating film, which affects the transmittance of the lens; [0006] 3. The heating power cannot be adjusted in real tim...

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Problems solved by technology

[0004] 1. The heating circuit is relatively complicated, and the probability of failure is relatively high;

[0005] 2. The heating method adopts the method of bonding the lens glass with the heating film, which affects the transmittance of the lens;

[0006] 3. The heating power cannot be adjusted in real time and dynamically according to the change of the external temperature, the heating power consumption is large, and the work efficiency is low;

[0007] 4. There is no manual heating mode, the flexibility is not high, and the environmental adaptability is poor;

[0008] 5. There is no detection circuit for the working state of the heating circuit. Once the heating fails, it cannot be fed back to the user in time, which increases the safety hazard and increases the cost of maintenance and repair in the later period.

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